Here are some modern ideas for clothing you can wear right now and well beyond October:
Anything denim is seasonless. The Gap has a denim coat that may be belted as a coatdress or worn as a jacket over lean black pants with a camisole or white shirt.
Try a sweater set in a new dark color such as gray or tan. Some include sleeveless tops appropriate for now and cardigans for cool nights and October days. Cotton sweaters in dark colors are also inexpensive and fail-safe.
Cotton pants in a home furnishings-inspired pattern are definitely in the fashion wave for fall. Add a dark cotton sweater and jacket to be put together.
And finally, as Hall notes, accessories are quick seasonal updates. Try belts in a classic tan or with a bit of glitz. Opt for shoes with a long lean silhouette. And look for bags with reptile textures or a logo print.